Machine for hulling rice



W.GER

Rice Huller and Cleaner.

Patented Sept. 15, 1857.-

UNITED STATES PATENT oEEioE.

VILSON AGER, OF RHORSBURG, PENNSYLVANIA.

MACHINE FOR HULLING RICE.

Specification of Letters Patent No. 18,176, dated September 15, 1857.

To all lwhom 'it may concern:

Be it known that I, IVILsoN AGER, of Rhorsburg, in the county ofColumbia and State of Pennsylvania, have invented a new and usefulImprovement in I-Iulling Rice; and I do hereby declare that thefollowing is `a full, clear, and exact description of the same,reference being had to the annexed drawing, forming part of thisspecification, in which-'- Figure l is a top view of the machine, bywhich the operation is effected. Fig. 2, is a vertical section on linew. Fig. 3 is an elevation of driving wheel end of machine. Fig. 4 is anelevation of the opposite end showing pinions for rotating the bur. Fig.5, is a view of the bur, removed from the shell. Fig. 6 is a viewshowing interior of shell.

Similar characters of reference in the severalfigures denote the samepart.

The object of my invention is the removal ofthe husk from the paddy orrough rice. Before describing the means I employ to eect that end, Iwill refer briefly to the structure of the grain to be operated upon.

n The husk of the paddy is attached to the grain at one extremity only,and can readily be separated therefrom, by pressure in direction of thelength of the grain. In fact this is the easiest way to effect theseparation.

The nature of my invention consists in effecting the hulling by a shelland bur rotating in opposite directions and so dressed and constructedthat the grain shall be t-urned at right angles to the axis of the saidshell and bur on coming between them, and each grain be made to receivea pressure in direction of its length, sufficient to separate the husk,the details of construction and operation being as hereinafter setforth.

In the drawing s is the shell, supported by hollow shafts a a, inbearings b b, and rotated in direction of arrow l, by power applied to.wheel A, secured on hollow shaft a. r

B is the bur having spindles c c at its extremities, passing throughhollow shafts a a and rot-ated in direction of arrow 2, by reason of cogwheel connection d d', between shafts a and f; and pinion connection e ce between shaft f and spindle c. The hollow shafts' a a are upon headsg, g', secured in the ends of the concave S, as shown in Fig. 2.

The shell s is incased in bands h h at its extremities, as shown in Figsl and 2. On band la is the feed hopper z', communicating with thesurface of the bur by openings z' in the shell (Figs. 2 and 6). Band Lhas a discharge pipe 7c; outlets 7c in the shell permitting the passageof the grain. These bands are secured to the supports D D by screws s',and the shell rotates freely within them.

The bur B, is formed with a spiral flange Z occupying the portionbeneath the band h', for conveying the paddy to the hulling portion ofthe machine. This hulling portion is cylindrical and is represented inFig. 5 by the part of the bur between y and a. Its surface has a dressconsisting of a system of indentations fn, having their greatest depthat the base and reaching the surface at the point. The hulling portionof the shell shown between y and e Fig. 6 has the same dress, arrangedin inverse order. This dress is shown at X and X, where X represents aportion of the hulling shell of full size, and X a portion of shell andbur of full size, revolving in opposite directions as indicated by thearrows 3 and 4, and showing the reverse position of the indentations.

Upon the hulling cylinder is the double series of deflecting blocks m,arranged spirally, as shown in Fig. 5, the action of which will behereinafter set forth. From 2 z of the bur B, is a spiral flange o whichconveys the grain and husk to the cleaning portion of the machine.

The operation of hulling is as follows The paddy is fed by hopper z', asshell and bur are rotated in the opposite directions, in-

dicated by arrows l and 2. On passing' through the openings z" of theshell, the rice encounters the spiral flange Z, and is conveyed by it tothe space between the hulling portions of shell and bur. The paddy onentering this space will 'encounter some one of the deflect-ing blocks mwhich will turn the grain across the axis of the bur, and in so doingcause one end of the gra'in to enter a cavity n in the shell, as theother is caught by one of the cavities n in the bur, as shown at X. Therotation of shell and bur as shown by arrows causes a pressure indirection of the length of the grain, effecting the separation of thehusk as before stated. The grain and husk then pass onward to the spiralflange 0 which conveys them to the cleaner.

What I claim as new and of my own in- In testimony whereof, I havehereunto vention, and desire to secure by Letters Patsigned my: namebefore two subscribing ent, iswitnesses.

Removing the rice husk by pressure in VILSON AGER. 5 direction of thelength of the grain, effected Witnesses: 4 by the action of a shell andbur dressed and Gmo. PATTEN,

operating substantially as set forth. JOHN S. HOLLINGSHEAD.

